Patents by Inventor Jing Hui Chen

Jing Hui Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6121385
    Abstract: Rubber-modified styrenic resin compositions of this invention comprise 90 to 30% by weight of rubber-modified styrenic resins (A) containing rubbery polymers dispersed with an average particle diameter of 0.3 to 2.0 .mu.m in the phase of styrenic polymers (C) and 10 to 70% by weight of styrene-(meth)acrylate ester copolymer resins (B) and, in said compositions, the content of (meth)acrylate ester units is 5 to 50% by weight and the toluene-insolubles (% by weight: X) and the rubber component (% by weight: Y) are present at a ratio (X/Y) in the range from 1.2 to 3.5. The compositions excel in appearance, scratch resistance, impact resistance and rigidity and are easy to fabricate.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: September 19, 2000
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Yasuji Shichijo, Jing Hui Chen, Keiichi Hayashi, Shigeru Owada, Isao Tanaka, Kiichi Kometani